The design and construction of architectural projects developed with BIM methodology is carried out according to certain established guidelines. One of these guidelines is the concept of Level of Information Needed (LOIN).
This guideline is based on the European standard EN17412 on LOIN, which specifies the required level of project information and deliverables for use in BIM modelling. The LOIN may be predefined in public or private standards, or defined for a particular design and construction project.
Geometric information (detail, dimensions, location, appearance, parametric level), alphanumeric information (identification and properties) and associated documentation (documents associated with an element, such as reports, manuals, photographs, etc.) must be established. In summary, the LOIN standard in BIM design and construction is divided into 5 aspects to be controlled: geometric complexity, dimensions, location, parameterisation and appearance of the modelled element.
By David González Molina, BIM manager at Amusement Logic’s Architecture Dept.
